253304688 has 80 divisors (see below), whose sum is σ = 805392896. Its totient is φ = 66804480.

The previous prime is 253304687. The next prime is 253304693. The reversal of 253304688 is 886403352.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253304687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24628 + ... + 33363.

Almost surely, 2^253304688 is an apocalyptic number.

253304688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

253304688 is an abundant number, since it is smaller than the sum of its proper divisors (552088208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253304688 is a wasteful number, since it uses less digits than its factorization.

253304688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58022 (or 58016 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 253304688 is about 15915.5486239086. The cubic root of 253304688 is about 632.7241472539.

The spelling of 253304688 in words is "two hundred fifty-three million, three hundred four thousand, six hundred eighty-eight".